Help Support Aussie Homebrewer by donating:

  1. We have implemented the ability to gift someone a Supporting Membership now! When you access the Upgrade page there is now a 'Gift' button. Once you click that you can enter a username to gift an account Upgrade to. Great way to help support this forum plus give some kudos to anyone who has helped you.
    Dismiss Notice

Fermenting in a Fermentasaurus

Discussion in 'All Grain Brewing' started by NzBrewerMatt, 26/3/18.

 

  1. NzBrewerMatt

    Active Member

    Joined:
    10/10/17
    Messages:
    35
    Likes Received:
    5
    Posted 26/3/18
    Hi Home Brewers!

    Just finished brewing an all grain batch last night which I have transferred into the Fermentasaurus which I am using for the first time. I'm definitely excited to start using the Fermentasaurus as it looks to be a great piece of kit and it was extremely cheap for a plastic conical!

    One question I do have about the Fermentasaurus is how do you take gravity hydrometer readings from it?
    My wort is currently fermenting (its only day 1) so after a few days I will of course be taking a gravity reading. I can attach the little spiggot to the bottom of the fermentasaurus however to do that, I'd have to dump some of the yeast trub from the bottom using the bottle. I did however purchase the pressure kit with the fermentasaurus. I'm just using the standard lid and airlock for this brew so could I potentially just sanitise the pressure kit and put a bit of Co2 in to extract a sample that way through the floating ball?

    Or is there a really easy way that I just haven't figured out yet?

    Thanks team!
     
  2. brewgasm

    Well-Known Member

    Joined:
    19/3/18
    Messages:
    319
    Likes Received:
    97
    Location:
    NSW
    Posted 26/3/18
    I would use the pressure kit
     
  3. NzBrewerMatt

    Active Member

    Joined:
    10/10/17
    Messages:
    35
    Likes Received:
    5
    Posted 26/3/18
    Yeah thanks. Just seems to be a bit risky with swapping the lids as it will allow oxygen to get in. I guess i could add Co2 and then purge out the oxygen. More oxygen would potentially get in when i add the normal airlock lid back on though.
     
  4. Wobbly74

    Well-Known Member

    Joined:
    11/1/17
    Messages:
    124
    Likes Received:
    74
    Posted 26/3/18
    Why replace the regular air lock? Just use the pressure top and use a blowoff tube attached to a gas quick disconnect with the tube running into some sanitiser.
     
    brewgasm and NzBrewerMatt like this.
  5. NzBrewerMatt

    Active Member

    Joined:
    10/10/17
    Messages:
    35
    Likes Received:
    5
    Posted 26/3/18
    Thanks. Not a bad idea actually. I will probably do this as i want to use the pressure kit to pressure transfer into my keg so it saves having to switch the lids.
     
  6. Fro-Daddy

    Well-Known Member

    Joined:
    23/4/17
    Messages:
    281
    Likes Received:
    79
    Gender:
    Male
    Occupation:
    Draftsperson
    Location:
    Brisbane, QLD
    Posted 26/3/18
    I think some people use a picnic tap to take a sample.
    Apparently there is a spot that can be drilled for a racking arm as well?
     
  7. NzBrewerMatt

    Active Member

    Joined:
    10/10/17
    Messages:
    35
    Likes Received:
    5
    Posted 27/3/18
    Yeah there is an additional racking arm that can be purchased but drilling a hole in the fermenter voids the warranty so I don't really want to do that unless as a last resort.
     
  8. Meddo

    Well-Known Member

    Joined:
    29/1/16
    Messages:
    582
    Likes Received:
    262
    Gender:
    Male
    Location:
    Brisbane
    Posted 27/3/18
    As described above, disconnect with beer line into a bottle of Starsan for the blowoff, and a disconnect with a short line and picnic tap for samples.

    The springs in the liquid post and disconnects clog up easily with hop matter - I found that removing the pins from the post and disconnect was the easiest fix for this but you need to remember to depressurise before you remove that liquid disconnect.

    Blow-off_result.jpg Samples_result.jpg
     
  9. NzBrewerMatt

    Active Member

    Joined:
    10/10/17
    Messages:
    35
    Likes Received:
    5
    Posted 27/3/18
    Thanks for that. I'll do that when ready to take a hydrometer sample. Looks easier just using the blow off tube instead of the airlock. How much Co2 in psi do you load when taking a small sample?
     
  10. Meddo

    Well-Known Member

    Joined:
    29/1/16
    Messages:
    582
    Likes Received:
    262
    Gender:
    Male
    Location:
    Brisbane
    Posted 27/3/18
    No idea, I have a service line from my keezer that's usually between 1 bar and 3 bar, I just tap that onto the post for a moment or a few seconds (depending on line pressure) to give it a bit of a squirt, you can feel the vessel get a slight firmness to it which should be plenty. If not, give it a bit more. Don't leave it connected at 3 bar though....

    You don't need much pressure in the FV to dispense through the tap, unless it's blocked - and pressure probably won't help then anyway. If you're not planning on carbonating in the FV then release the pressure once you've dispensed your sample.
     
  11. Wobbly74

    Well-Known Member

    Joined:
    11/1/17
    Messages:
    124
    Likes Received:
    74
    Posted 27/3/18
    My face can attest to that...
     
    brewgasm and Meddo like this.
  12. Yuz

    Well-Known Member

    Joined:
    4/8/17
    Messages:
    244
    Likes Received:
    75
    Gender:
    Male
    Location:
    Melb SE
    Posted 29/3/18
    Has anyone had issues with Fermentasaurus leaking gas at the top cap?
    I've used keg lube on both sides of the flanged gasket and made sure it sits properly over the opening edge, but it still hisses through...
     
  13. markp

    Well-Known Member

    Joined:
    21/11/17
    Messages:
    133
    Likes Received:
    45
    Posted 29/3/18
    I did have probs initially but found that I wasn’t tightening the collar enough and by giving it that extra 1/4 of a turn I can hold 15 psi no probs, I’ve had it up to 25 psi without leaks aswell.
     
  14. Yuz

    Well-Known Member

    Joined:
    4/8/17
    Messages:
    244
    Likes Received:
    75
    Gender:
    Male
    Location:
    Melb SE
    Posted 29/3/18
    That gasket should've been made reinforced somehow (co-moulded with a rigid centre?) - it just seems to squeeze out of shape...
    I've re-seated it and charged to 6PSI - we'll see how it holds. I've had no issues with it leaking a little previously for transfers, but attempting to pressure ferment it's major headache...
     
  15. Kev R

    Well-Known Member

    Joined:
    9/3/13
    Messages:
    168
    Likes Received:
    41
    Posted 29/3/18
    Mine did that with the original gasket,the replacement seems ok 3 brews so far.
    I make sure that I always have a spare new gasket on hand.
     
  16. garage_life

    Well-Known Member

    Joined:
    22/1/17
    Messages:
    121
    Likes Received:
    32
    Gender:
    Male
    Location:
    Brisbane, North West
    Posted 11/4/18
    In regards to the gasket / O ring, to prevent extruding (seal deforming under pressure / compression and leaking) most high pressure seals have a back up ring. All this is is a nylon / Teflon / hard plastic ring that sits behind the O ring (opposite to the pressure force) to stop the deformation. I know those doesn't really help but changing Tina harder seal or homebrewing up a back up ring will increase sealing, also lube is your friend, threads and seals dry seals don't seal well. 30psi is nothing pressure wise though, I'd be looking at the plastic surface finish and seal finish.
     
Draft saved Draft deleted

Share This Page

Group Builder